Re: [Boost-bugs] [Boost C++ Libraries] #3408: gamma distribution's quantile performance

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #3408: gamma distribution's quantile performance
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2009-10-01 16:08:39

#3408: gamma distribution's quantile performance
 Reporter: chhenning@… | Owner: johnmaddock
     Type: Tasks | Status: assigned
Milestone: Boost 1.41.0 | Component: math
  Version: Boost 1.40.0 | Severity: Optimization
 Keywords: |

Comment(by johnmaddock):

 OK another round of changes and now I see:

 Testing igamma 5.849e-007[[BR]]
 Testing igamma-dcd 5.857e-007[[BR]]
 Testing igamma_inv 2.651e-006[[BR]]
 Testing igamma_inv-dcd 1.855e-006

 So still some work to do on the inverse, but the forward function is
 looking pretty healthy now. These changes effect some of the underlying
 boilerplate code, and so should improve times right throughout the library

 BTW, these times were obtained with -Ox and -DNDEBUG, the latter is
 particularly important, as there are quite a few asserts in our code!

 Committed to trunk with revision #56503.

 Onwards to work on the inverse now.... John.

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